There are also a few keyboard commands that target various types of things that are nearby; I don't remember them all but T targets the nearest enemy and O clears targetting; I think Y toggles between all visible ally targets and I toggles between all visible enemy targets, but I'm not sure. These commands can be handy for "scanning" the area for targets, though I do agree that things like fighters and satellites are very easy to ram into and take heavy damage or die from!
I'll have to go and suggest more reticles in the beta forum...